shirttail

Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

n. The part of a shirt that extends below the waist, especially in the back.

n. A brief addition at the end of a newspaper article.

adj. Very young: shirttail kids.

adj. Of little value; inadequate or small: a shirttail cabin in the woods.

from Wiktionary, Creative Commons Attribution/Share-Alike License

n. The single or split (then rather plural) bottom part of a shirt, below the waist, especially in the back, which, when not tucked into trousers or other vestment, hangs over the wearer's tail-end, like a tail.

For example, I did a dish of shirttail grouse with farro, sunflower seeds, malt vinegar, vetch flowers and a rose hip glaze -- the grouse we'd shot had been gorging on vetch and rose hips, so it seemed appropriate.